The scale would rate a storm based on the amount of dust in the air, as well as other components, researchers say.
Small county bears a large burden as deadly dust storms wreak havoc at the Arizona-New Mexico border
A stretch of Interstate 10 at the Arizona-New Mexico border has claimed more than 50 lives over the last 40 years due to dust ...
The Cool Down on MSN
Thousands of Americans warned to 'shut windows now' as plume of 'hazardous' air engulfs Arizona
Children, older adults, pregnant people, and anyone with heart or lung disease are especially at risk.
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